Finding the Fourth Proportional to 641,743.70, 962,615.55 and 326,815.70
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Solution
The fourth proportional to 641,743.70, 962,615.55 and 326,815.70 is: 490,223.55
Step by Step Solution
- Step 1: Write the proportion equation
641,743.70 : 962,615.55 = 326,815.70 : x - Step 2: Convert to fraction form
641,743.70/962,615.55 = 326,815.70/x - Step 3: Cross multiply
641,743.70x = 962,615.55 × 326,815.70 - Step 4: Simplify right side
641,743.70x = 314,597,874,804.14 - Step 5: Solve for x
x = 314,597,874,804.14/641,743.70 - Step 6: Final answer
x = 490,223.55
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Similar ratio
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.